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3 years ago

Find the distance between 2-3i and 9+21i

Mathematics

1 answer:

Andre45 [30]3 years ago

6 0

Answer:

Step-by-step explanation:

The distance is the magnitude of the difference:

|(2 -3i) -(9 +21i)| = |-7 +24i| = √((-7)² +24²) = √625 = 25

The distance between the two points in the complex plane is 25 units.

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The children sold lemonade for 25 sense a cup they sold 40 cups how much money did they earn

jekas [21]

Do you mean 25 cents?
y= $.25 x
y =$ .25(40)
y=10
so they earned $10

6 0

3 years ago

Your school is organizing a carnival. You are building a ramp for a game. The surface of the ramp will be 7 feet long with a tot

mariarad [96]

Answer:

$\theta=16.6^{\circ}$

Step-by-step explanation:

Given that,

The surface of the ramp will be 7 feet long with a total rise of 2 feet.

We need to find the angle of elevation of the ramp. We can use trigonometry to find it such that,

$\sin\theta=\dfrac{P}{H}$

P is perpendicular

H is hypotenuse

Here, P = 2 feet, H = 7 feet

So,

$\sin\theta=\dfrac{2}{7}\\\\\theta=16.6^{\circ}$

So, the angle of elevation of the ramp is equal to $16.6^{\circ}$ .

4 0

3 years ago

Select all the points that are on the graph of the line 2x+4y=20.

Sloan [31]

Answer:

here you can get your answer from https://cutly.com

thx for the points btw

6 0

3 years ago

Read 2 more answers

I need help plz cmon

PolarNik [594]

Answer: 84

Step-by-step explanation:

4 x 21 is 84 a fraction can be simplified and be a whole number so if 84 divided by 4 it will be 21 if you want to write it as a fraction it will be 21/1 which is equal to 21

Did it help? :)

7 0

3 years ago

What fraction multiplied by itself is equal to 4/25

olga_2 [115]

Answer:

2/5

Step-by-step explanation:

we see that 2x2=4

and 5x5is equal to 25

so the answer is 2/5

3 0

4 years ago

Read 2 more answers